ubuntu离线安装docker导入镜像

docker安装包

准备工作

1.准备一个docker.service文件

内容如下：

[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network-online.target firewalld.service
Wants=network-online.target
  
[Service]
Type=notify
# the default is not to use systemd for cgroups because the delegate issues still
# exists and systemd currently does not support the cgroup feature set required
# for containers run by docker
ExecStart=/usr/bin/dockerd -H unix:///var/run/docker.sock --selinux-enabled=false --default-ulimit nofile=65536:65536
ExecReload=/bin/kill -s HUP $MAINPID
# Having non-zero Limit*s causes performance problems due to accounting overhead
# in the kernel. We recommend using cgroups to do container-local accounting.
LimitNOFILE=infinity
LimitNPROC=infinity
LimitCORE=infinity
# Uncomment TasksMax if your systemd version supports it.
# Only systemd 226 and above support this version.
#TasksMax=infinity
TimeoutStartSec=0
# set delegate yes so that systemd does not reset the cgroups of docker containers
Delegate=yes
# kill only the docker process, not all processes in the cgroup
KillMode=process
# restart the docker process if it exits prematurely
Restart=on-failure
StartLimitBurst=3
StartLimitInterval=60s
  
[Install]
WantedBy=multi-user.target

假定安装包和docker.service文件以及各种镜像包都在/home/carrot/docker中

正片开始

进入位置

cd /home/carrot/docker

解压

tar -zxvf docker-24.0.7.tgz

复制

sudo cp docker/* /usr/bin
sudo cp docker.service /etc/systemd/system/

赋予权限

sudo chmod +x /etc/systemd/system/docker.service

开启docker并并设置开机自启动

sudo systemctl daemon-reload
sudo systemctl start docker
sudo systemctl enable docker.service

收尾

将准备好的镜像包导入（以ubuntu镜像包为例）注意xxx.tar 是通过其他服务器执行docker save获取的

sudo  docker load -i xxx.tar

使用docker权限不足时

# 添加docker用户组，一般已存在，不需要执行
 
sudo groupadd docker
 
# 将登陆用户加入到docker用户组中
 
sudo gpasswd -a $USER docker
 
# 更新用户组
 
newgrp docker
 
# 以上操作不行就重启 （慎用）
 
sudo reboot

镜像导入完成后删除多余文件

cd ..
rm -r docker